Serious Sam II, like the last installment, will throw everything and the kitchen sink at you. Sometimes it will be waves of explosive kamikazes. Other times it will be a handful of towering cyberfleshy dudes. Sometimes they'll run on the ground, while other times they'll be death from above. Or below. Who knows? It's this kind of joyful, almost manic unpredictability that charmed us the first time around.

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